Sewell t



(No Model.)

S s. T HADDEN.

SEWER TRAP.

180.391.1415. Patented Oct. 16,1888.

WITNESSES Fl 52/; INVENTlJF'y n. PETERS. Phom-Lnno n mr. Wahin mn. D4 1:

UNITED STATES PATENT OFFICE.

SEWVELL T. HADDEN, OF NEYV YORK, N. Y.

SEWER-TRAP.

SPECIFICATION forming part of Letters Patent No. 391,143, dated October 16, 1888.

Application filed June 152, 1888.

To all whom it may concern:

Be it known that I, SEWELL T. HADDEN, of New York city, New York, have invented a new and Improved Sewer-Trap, of which the following is a specification.

This invention relates to a sewer-trap so constructed that the bad gases from the sewer are effectively excluded from the house, and so that the greater the amount of back-pressure the more firmly will the valve be closed.

The invention consists in the various features of improvement, more fully pointed out in the claim.

In the accompanying drawings, Figure 1 is a vertical central section of my improved sewertrap. Fig. 2 is a horizontal section on line a: m, Fig. 1; and Fig. 3, a bottom view of the guard j.

The letter a represents the lower seeti0n,and b the upper section, of a cylindrical vessel, such sections being connected bya central tubular glass cylinder, 0. The partsacb constitute the chamber of the trap. The lower section, a, receives, preferably about midway from its bottom,the inlet-pipe d, connecting with asink, bath-tub, 850., and opposite such pipe there is a screw-plugged opening, e, for the removal of sediment that may settle in section a beneath the mouth of pipe (1. Above pipe (1 the section a is provided with a fiange,a,upon which is set an annular removable plate, f, provided with the flaring valve seat f,upon which rests the solid-rubber ball-valve g. Thelower edge of the glass cylinder 0 is set upon the annular platef, while the upper edge of such cylinder supports the upper section, b, by means of a flange, b, projecting inwardly from said section. This section 12 connects at aboutits center with the outlet-pipe h, that leads to the sewer. The upper side of section b has an opening, which is closed by a screw-plug, i, from which depends the stem of guard j, having a crossshaped form, as shown in Fig. 3. This guard projects beneath the mouth of pipe h, and as the water-level in the trapis above such guard-namely, the line m mall hair or other matter that may float upward will be arrested by the guard.

In order to connect the parts cab of the trap, the parts a b are provided with angle-plates k, connected by bolts Z and nuts n.

The operation of the device is as follows: Pressure from the inlet-pipe d will raise the valve 9 from its seat to permit the passage of the waste through the trap and into thesewer. As soon as the pressure releases the valve settles upon itsseat. Sediments depositedinsection a are from time to time removed through the screw-plugged opening 6, while lighter or floating matter that is carried upward is arrested by the guard j. The operation of the trap may at all times be inspected through its central glass section, a.

If it should be necessary to subject the entire trap to a thorough cleaning, it may be taken entirely apart by unscrewing nuts n.

India-rubber packing-rings o o are placed between the ends of the glass cylinder 0 and the flanges a and b to make a tight joint.

Even if all the water in the trap should evaporate or should be siphoned out the ballvalve will close tightly upon its seat.

What I claim is- The combination of section a with the laterally-entering inlet-pipe d,and with a screwplugged opening opposite thereto, and with a flange in the upper part of section a and with a plate, f, having valveseatf,supported upon said flange, and with a central section, 0, supported upon plate f, and with an upper flanged section, I), having laterally-entering exit-pipe, and with a screw-plug, e, in the top of section b, and with a guard,j, depending from such plug, substantially as specified.

SEWELL T. HADDEN.

\Vitnesses:

F. v. BRIEsEN, ALFRED J ONGHMANS. 

